What is the Effective EMF of 2 Cells in Parallel with Zero Internal Resistance?

In summary, when two cells with zero internal resistance are connected in parallel, the effective emf is equal to the emf of the cell with the greater emf. This applies to all electrical sources, regardless of their internal resistance.
  • #1
mksrpillai
1
0
what is the Effective emf of 2 cells with zero internal resistance connected in parallel
(E1>E2)
 
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  • #2
Good morning mksrpillai, welcome to Physics Forums.

All cells have internal resistance.

It is not a good idea to try to use division-by-zero scenarios as anything other than to show how pointless division-by-zero scenarios are.
 
  • #3
The concept of internal resistance applies to all electrical sources.

If two cells of equal emf s are connected in parallel then the effective emf is equal to the emf of anyone of the cells.
If two cells of different emf are connected in parallel then the effective emf is equal to the
emf of the cell which is having greater emf. so in ur case E1is the effective emf.
 

FAQ: What is the Effective EMF of 2 Cells in Parallel with Zero Internal Resistance?

What is the formula for calculating the total EMF of cells in parallel?

The formula for calculating the total EMF of cells in parallel is E = E1 + E2 + E3 + ... + En, where E is the total EMF and E1, E2, E3, etc. are the individual EMF values of each cell.

How does the EMF of cells in parallel differ from cells in series?

The EMF of cells in parallel is the sum of the individual EMF values, while the EMF of cells in series is the sum of the individual cell voltages. Additionally, in parallel, each cell has the same potential difference across it, while in series, the potential difference is divided among the cells.

What factors affect the EMF of cells in parallel?

The EMF of cells in parallel is affected by the individual EMF values of each cell, the internal resistance of each cell, and the total number of cells in the circuit.

How does the internal resistance of cells affect the total EMF in a parallel circuit?

The internal resistance of cells decreases the total EMF in a parallel circuit. This is because the internal resistance acts as a resistor in the circuit, causing a voltage drop and reducing the overall EMF.

Can the EMF of cells in parallel ever be greater than the individual EMF values?

No, the EMF of cells in parallel can never be greater than the individual EMF values. It can only be equal to or less than the sum of the individual EMF values.

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